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Addition to existing structure builders in Washington DC
We have over 10 years of experience in the business. Here at Kozan Construction, LLC, we pride our company on reliability, great communication, integrity and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!
"The original project I hired them for was to replace leaky faucets in both the kitchen and bathroom. Frank, the owner, was responsive and professional. They scheduled the work promptly and showed up on time. Unexpected issues were discovered that required a second trip and additional work. They communicated everything clearly and the additional costs were handled separately and transparently. They also cleaned up after the work was done. I would hire them again."
Ruxandra B on June 2025
We have over 10 years of experience in the business. Here at Kozan Construction, LLC, we pride our company on reliability, great communication, integrity and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!
"The original project I hired them for was to replace leaky faucets in both the kitchen and bathroom. Frank, the owner, was responsive and professional. They scheduled the work promptly and showed up on time. Unexpected issues were discovered that required a second trip and additional work. They communicated everything clearly and the additional costs were handled separately and transparently. They also cleaned up after the work was done. I would hire them again."
Ruxandra B on June 2025
Family owned and operated with over 30 years of experience in the home improvement industry LH construction are the expert you need for you're project! With us no job is to big or to small we never leave a project unfinished most importantly we never leave a homeowner unsatisfied we look forward to hearing from you!
"He is terrible, he did not finish the job before starting a new one."
pamela r on December 2021
Family owned and operated with over 30 years of experience in the home improvement industry LH construction are the expert you need for you're project! With us no job is to big or to small we never leave a project unfinished most importantly we never leave a homeowner unsatisfied we look forward to hearing from you!
"He is terrible, he did not finish the job before starting a new one."
pamela r on December 2021
3DF LLC is a locally owned and operated company serving the Reston, VA area and surrounding communities. 3DF, LLC is a full service design & builder of your dream home and living environment. We can help expand your existing structure for you and your family to enjoy for years. Professional craftsmanship, reasonable rates, and friendly customer service. Call us now!
"Could not be happier with Jim's work. Remodeled master bath, kitchen, replaced front door, plus several other smaller tasks. Easy to work with. Has a talented eye for style and design. Kept me informed throughout the process. Has experience with the design board in my town (Reston). Never up-charged. I've recommended him to several neighbors already."
Brian B on August 2024
3DF LLC is a locally owned and operated company serving the Reston, VA area and surrounding communities. 3DF, LLC is a full service design & builder of your dream home and living environment. We can help expand your existing structure for you and your family to enjoy for years. Professional craftsmanship, reasonable rates, and friendly customer service. Call us now!
"Could not be happier with Jim's work. Remodeled master bath, kitchen, replaced front door, plus several other smaller tasks. Easy to work with. Has a talented eye for style and design. Kept me informed throughout the process. Has experience with the design board in my town (Reston). Never up-charged. I've recommended him to several neighbors already."
Brian B on August 2024
R & A Contractors Group Inc. is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customer's interests, and make their concerns the basis of our business.
"R&A Contractors Group, Inc., is a great company to work with. They are on time, efficient, and upfront with pricing."
Daren D on November 2022
R & A Contractors Group Inc. is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customer's interests, and make their concerns the basis of our business.
"R&A Contractors Group, Inc., is a great company to work with. They are on time, efficient, and upfront with pricing."
Daren D on November 2022
BasementRemodeling.com / Basement Masters - licensed and insured, award winning Basement Remodeling and Finishing company. Highest rated basement renovation contractor in Maryland. Finished Basements are our specialty. We specialize in custom basement remodeling and finishing and other large-scale remodels. We offer free in home and over-the-phone estimate and consultation. Here at BasementRemodeling.com we believe that QUALITY AND EXCEPTIONAL CRAFTSMANSHIP must always come along with AFFORDABILITY. keywords: finished basement basements remodeling.
"Basement Remodeling just completed our basement remodeling project, on time and on budget. We couldn’t be more pleased! We investigated other remodeling companies but chose Basement Remodeling after our discussions with Eric, in part because we believed we could count on their expertise in handling the inevitable quirks of renovating a 70 year old house. Our project (and budget) was probably fairly modest when compared to many remodeling projects, and Eric offered suggestions for inexpensive problem solving (rehanging existing doors, for example) rather than trying to upsell us on other, more costly solutions. We fully renovated about one-third of the basement space which included the furnace, water heater and a small but completely unfinished laundry area. Basement Remodeling created an enclosed area for the furnace and water heater and neatly disguised the electric panel, adding a well-designed, efficient and attractive wet bar with cabinetry, appliances and a custom pantry. The renovation also included cosmetic upgrades to the rest of the basement space, adding new flooring and fresh paint. The space now looks absolutely terrific! The company took care of everything, from permitting to cleanup, and every person on the team was thoughtful, responsive and a pleasure to work with. Any concerns we had along the way were addressed immediately and quickly resolved to our satisfaction. We highly recommend Basement Remodeling!"
Tom C on June 2025
BasementRemodeling.com / Basement Masters - licensed and insured, award winning Basement Remodeling and Finishing company. Highest rated basement renovation contractor in Maryland. Finished Basements are our specialty. We specialize in custom basement remodeling and finishing and other large-scale remodels. We offer free in home and over-the-phone estimate and consultation. Here at BasementRemodeling.com we believe that QUALITY AND EXCEPTIONAL CRAFTSMANSHIP must always come along with AFFORDABILITY. keywords: finished basement basements remodeling.
"Basement Remodeling just completed our basement remodeling project, on time and on budget. We couldn’t be more pleased! We investigated other remodeling companies but chose Basement Remodeling after our discussions with Eric, in part because we believed we could count on their expertise in handling the inevitable quirks of renovating a 70 year old house. Our project (and budget) was probably fairly modest when compared to many remodeling projects, and Eric offered suggestions for inexpensive problem solving (rehanging existing doors, for example) rather than trying to upsell us on other, more costly solutions. We fully renovated about one-third of the basement space which included the furnace, water heater and a small but completely unfinished laundry area. Basement Remodeling created an enclosed area for the furnace and water heater and neatly disguised the electric panel, adding a well-designed, efficient and attractive wet bar with cabinetry, appliances and a custom pantry. The renovation also included cosmetic upgrades to the rest of the basement space, adding new flooring and fresh paint. The space now looks absolutely terrific! The company took care of everything, from permitting to cleanup, and every person on the team was thoughtful, responsive and a pleasure to work with. Any concerns we had along the way were addressed immediately and quickly resolved to our satisfaction. We highly recommend Basement Remodeling!"
Tom C on June 2025
Betterliving sunroom of the Capital area is sub division of Deck Soldier - family own business, over 14 years we spetialise in Deck building , restoration and screen porch constractions. December 2023 is time when we get opportunity to be come dealer for one of the best Sunroom manufactory -Betterliving sunrooms. Beginning of 2024 was education time. We spent 2 weeks with crew leaders on factory in PA - learning new materials and installation process. Another 2 weeks our sales team learned history of 70 years company and saw how every detail of sunroom is made, learn why Betterliving Sunrooms is best quality sunrooms on market. We proud that we build over 30 Sunrooms and screen porches in 2024 and all our customers happy with their final rooms. We sustain our business on quality and integrity. We look forward to earning your business -sunrooms (3 or 4 season , vinyl or aluminum) -screen rooms -porches -deck building -deck remodeling -deck restoration( washing, staining) -paver patio/retaining walls
"Deck Soldier (aka Betterliving) did a fantastic job of powerwashing and then sealing my deck, installing new handrails, and staining the swingset in the yard. Very pleased with their work and their professionalism."
Andrew H on October 2024
Betterliving sunroom of the Capital area is sub division of Deck Soldier - family own business, over 14 years we spetialise in Deck building , restoration and screen porch constractions. December 2023 is time when we get opportunity to be come dealer for one of the best Sunroom manufactory -Betterliving sunrooms. Beginning of 2024 was education time. We spent 2 weeks with crew leaders on factory in PA - learning new materials and installation process. Another 2 weeks our sales team learned history of 70 years company and saw how every detail of sunroom is made, learn why Betterliving Sunrooms is best quality sunrooms on market. We proud that we build over 30 Sunrooms and screen porches in 2024 and all our customers happy with their final rooms. We sustain our business on quality and integrity. We look forward to earning your business -sunrooms (3 or 4 season , vinyl or aluminum) -screen rooms -porches -deck building -deck remodeling -deck restoration( washing, staining) -paver patio/retaining walls
"Deck Soldier (aka Betterliving) did a fantastic job of powerwashing and then sealing my deck, installing new handrails, and staining the swingset in the yard. Very pleased with their work and their professionalism."
Andrew H on October 2024
All Renovations was started by a local graduate of George Washington University. We are fully licensed in all trade work including building, electrical and plumbing . We have always put our customers first in delivering what we promise without any gimmicks. The reputation of our company is proven through our satisfactory track record including winning the highly coveted Angie’s List Super Service Award and being selected as a Best Pick Report contractor on numerous occasions. The staff at our company values your time with prompt on site visits, quick turnaround in providing cost estimates, and a responsive attitude until job completion. We can assure you that our pricing and written warranty provides value in your investment when compared with other professionally licensed contractors. Due to our staffing requirements we are only able to take on jobs $10k or higher.
"I am giving All Renovations 5 stars for the basement renovation in large part because of Adrian’s excellent craftsmanship and attention to detail. Our job was pretty extensive. It included moving support columns, demo and rebuild exterior stairway, adding a full bath, extending the finished/framed portion of the basement, moving the circuit-breaker panel, and re-doing our half-bath. The job took 6 months, which was about twice as long as we expected. Omar was always very responsive and provided good feedback. Adrian is very good at explaining things and soliciting your input when options/alternatives exist. He definitely does not take short-cuts if quality would suffer. He is also very considerate/careful inside your home and cleans-up after himself. Our $102k project ballooned to $125k, mostly due to nice to have add-ons and unforeseen issues. But there were several items I feel should have been caught at the contract onset. E.g. the need for a floor drain ($900), considering that we were getting rid of the utility sink basin. There was also an extra $4k to replace the drywall in the half bath since the existing paint was too textured (sponge) to paint over. But we were very pleased with the outcome and would definitely recommend All Renovations."
Shane G on March 2025
All Renovations was started by a local graduate of George Washington University. We are fully licensed in all trade work including building, electrical and plumbing . We have always put our customers first in delivering what we promise without any gimmicks. The reputation of our company is proven through our satisfactory track record including winning the highly coveted Angie’s List Super Service Award and being selected as a Best Pick Report contractor on numerous occasions. The staff at our company values your time with prompt on site visits, quick turnaround in providing cost estimates, and a responsive attitude until job completion. We can assure you that our pricing and written warranty provides value in your investment when compared with other professionally licensed contractors. Due to our staffing requirements we are only able to take on jobs $10k or higher.
"I am giving All Renovations 5 stars for the basement renovation in large part because of Adrian’s excellent craftsmanship and attention to detail. Our job was pretty extensive. It included moving support columns, demo and rebuild exterior stairway, adding a full bath, extending the finished/framed portion of the basement, moving the circuit-breaker panel, and re-doing our half-bath. The job took 6 months, which was about twice as long as we expected. Omar was always very responsive and provided good feedback. Adrian is very good at explaining things and soliciting your input when options/alternatives exist. He definitely does not take short-cuts if quality would suffer. He is also very considerate/careful inside your home and cleans-up after himself. Our $102k project ballooned to $125k, mostly due to nice to have add-ons and unforeseen issues. But there were several items I feel should have been caught at the contract onset. E.g. the need for a floor drain ($900), considering that we were getting rid of the utility sink basin. There was also an extra $4k to replace the drywall in the half bath since the existing paint was too textured (sponge) to paint over. But we were very pleased with the outcome and would definitely recommend All Renovations."
Shane G on March 2025
At Nogales Design Kitchen & Bath, we are dedicated to providing the finest kitchen, bath, and home remodeling services. Our commitment to customer service and satisfaction is unmatched. With a focus on excellence in workmanship and design creativity, we turn remodeling dreams into realities. Contact us today to transform your home.
"It went amazing. I am very pleased with the work done and with the excellent customer service."
Patricia L on January 2025
At Nogales Design Kitchen & Bath, we are dedicated to providing the finest kitchen, bath, and home remodeling services. Our commitment to customer service and satisfaction is unmatched. With a focus on excellence in workmanship and design creativity, we turn remodeling dreams into realities. Contact us today to transform your home.
"It went amazing. I am very pleased with the work done and with the excellent customer service."
Patricia L on January 2025
Home Breakthrough is a local, family owned home remodeling business. Francisco and Honika Victoriano, combine old-word craftsmanship with contemporary building techniques to create extraordinary new living spaces. They take great pride in the home renovation work they do. The remodeling contractors at Home Breakthrough have a strong reputation for delivering high quality construction and home renovation projects, working with diligence and honesty. The Victorianos have built their remodeling business & reputation over the years by providing excellent work at highly competitive prices. 14-15 workers. Cost is determined by the job. Free design consultations. No travel charges. No service charges. May contact through email. Award winning .
"I have been using the team at home breakthrough for years. At this point they fully remodeled my basement including adding a new bathroom/wet bar. As well as a huge overhaul of my main floor bath and laundry room. The quality of their work is outstanding. I also love their quote structure. They start with a labor number and give you an idea of what materials will cost but it’s essentially a chose your own adventure on how high end you want to go on features etc and they are very helpful to guide you on the way as well as have great experts to point you to on cabinets, fixtures, tile, countertops etc to help you achieve your vision. Look forward to having them back for my next project!"
Scott A on March 2025
Home Breakthrough is a local, family owned home remodeling business. Francisco and Honika Victoriano, combine old-word craftsmanship with contemporary building techniques to create extraordinary new living spaces. They take great pride in the home renovation work they do. The remodeling contractors at Home Breakthrough have a strong reputation for delivering high quality construction and home renovation projects, working with diligence and honesty. The Victorianos have built their remodeling business & reputation over the years by providing excellent work at highly competitive prices. 14-15 workers. Cost is determined by the job. Free design consultations. No travel charges. No service charges. May contact through email. Award winning .
"I have been using the team at home breakthrough for years. At this point they fully remodeled my basement including adding a new bathroom/wet bar. As well as a huge overhaul of my main floor bath and laundry room. The quality of their work is outstanding. I also love their quote structure. They start with a labor number and give you an idea of what materials will cost but it’s essentially a chose your own adventure on how high end you want to go on features etc and they are very helpful to guide you on the way as well as have great experts to point you to on cabinets, fixtures, tile, countertops etc to help you achieve your vision. Look forward to having them back for my next project!"
Scott A on March 2025
We understand how important it is to have confidence in the people who design your landscape. We have a friendly staff of highly creative and capable people, and we pride ourselves in our excellent service recognized around DC area, Maryland and Virginia. That’s how we’ve built our business throughout more than 18 years and mostly through referrals. For more than a decade, Xtra Care Landscaping & Design, Inc, has provided professional lawn and yard maintenance as well as comprehensive landscaping design-build services to residential and commercial clients throughout the metropolitan Washington, DC area.Whether you choose mowing and edging, artificial turf or mulching our competitive pricing and professional service is among the best in the area, and be sure to ask about our complete landscape design-build services guaranteed to blend your home or office seamlessly into it’s natural surroundings. Call us for any of the listed services: Yard & Maintenance, Hardscaping, Sprinkler Systems, Lighting, Artificial Turf, Decks, Landscape Design, Going Green, Concrete Art, Or Commercial Maintenance!
"I recently worked with Cleber and the Xtra Care team on frontyard landscaping for our home in Potomac. I had an excellent experience from beginning to end. Cleber and his team are professional and detail-oriented. He is flexible to work with his clients and he listens, while sharing his own ideas. Cleber's team has expertise on landscaping, which was helpful as I requested for deer-resistant trees. Pricing is transparent with detail-oriented quotes that share line-item details on each plant, stone, or other item. Finally, on the day of, Cleber and his team worked efficiently and thoroughly. Each team member was polite and hardworking, and made the overall experience a pleasure. I look forward to continuing to work with Cleber and his team on my future landscaping and hardscaping needs."
Asif A on June 2025
We understand how important it is to have confidence in the people who design your landscape. We have a friendly staff of highly creative and capable people, and we pride ourselves in our excellent service recognized around DC area, Maryland and Virginia. That’s how we’ve built our business throughout more than 18 years and mostly through referrals. For more than a decade, Xtra Care Landscaping & Design, Inc, has provided professional lawn and yard maintenance as well as comprehensive landscaping design-build services to residential and commercial clients throughout the metropolitan Washington, DC area.Whether you choose mowing and edging, artificial turf or mulching our competitive pricing and professional service is among the best in the area, and be sure to ask about our complete landscape design-build services guaranteed to blend your home or office seamlessly into it’s natural surroundings. Call us for any of the listed services: Yard & Maintenance, Hardscaping, Sprinkler Systems, Lighting, Artificial Turf, Decks, Landscape Design, Going Green, Concrete Art, Or Commercial Maintenance!
"I recently worked with Cleber and the Xtra Care team on frontyard landscaping for our home in Potomac. I had an excellent experience from beginning to end. Cleber and his team are professional and detail-oriented. He is flexible to work with his clients and he listens, while sharing his own ideas. Cleber's team has expertise on landscaping, which was helpful as I requested for deer-resistant trees. Pricing is transparent with detail-oriented quotes that share line-item details on each plant, stone, or other item. Finally, on the day of, Cleber and his team worked efficiently and thoroughly. Each team member was polite and hardworking, and made the overall experience a pleasure. I look forward to continuing to work with Cleber and his team on my future landscaping and hardscaping needs."
Asif A on June 2025
FAQs for addition to existing structure building service projects in Washington DC, DC
Building an in-law suite takes between two and seven months. Converting an existing basement, attic, or room can be done in about two months. Constructing a new addition or detached suite often takes four to five months for construction, plus one to two months for permits. The bigger the suite, the longer it will take.
Yes, you can build an in-law suite in your backyard if you meet local building codes and zoning regulations. An in-law suite often occupies 300 to 800 square feet. Be sure to follow size restrictions, utility separations, and entrance requirements. Hiring a qualified contractor ensures you meet all regulatory requirements because they can pull permits, double-check local code, and gather other skilled pros to work on your suite.
An in-law suite is a self-contained living space attached to—or detached from—your main home. Expect a bedroom, full bath, and a kitchenette or compact living area. The setup gives relatives privacy, doubles as a potential rental, and can lift your property value. To qualify as a legal dwelling, the suite must meet local building codes and zoning rules.
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